Implement new LED driver

Verification for the new LED driver is completed so time to replace the
previous gpio implementation with the new one. This entails
replacing the led_controller file with the led_controller_new file,
updating the dbus interface name so that it is the same as the previous
one, and updating the code with the new led names.
diff --git a/bin/chassis_control.py b/bin/chassis_control.py
index ad7a6ad..fbadcde 100755
--- a/bin/chassis_control.py
+++ b/bin/chassis_control.py
@@ -33,7 +33,7 @@
 			},
 			'identify_led' : {
 				'bus_name' : 'org.openbmc.control.led',
-				'object_name' : '/org/openbmc/led/IDENTIFY',
+				'object_name' : '/org/openbmc/control/led/identify',
 				'interface_name' : 'org.openbmc.Led'
 			},
 			'watchdog' : {